Great Purple Hairstreak,  Atlides halesus  <LEP44>

 

     Its other name, Great Blue Hairstreak, may be more suitable.  The upperside is the deepest, most brilliant iridescent blue, on the body as well as the wings.  A black border SKETCHs the wings and greenish reflections may show, especially in the spots near the long tails.  Our largest hairstreak.  Its caterpillars feed on mistletoe, parasites of oak trees.